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Coordination of water molecules in the [8]collarene-K+ complex. (a) The HF/3–21G optimized structure of [8]collarene-K+ + (H2O)6. (b) The MC predicted instantaneous coordination of water molecules near [8]collarene-K+ (480 water molecules were included in the simulation). Two water molecules interact with the K+ cation at both portals.
